Improvement of JPEG Compression Efficiency Using Information Hiding and Image Restoration

Kazumi YAMAWAKI  Fumiya NAKANO  Hideki NODA  Michiharu NIIMI  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E96-D   No.5   pp.1233-1237
Publication Date: 2013/05/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.E96.D.1233
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Image Processing and Video Processing
Keyword: 
information hiding,  image compression,  image restoration,  JPEG,  color image,  

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Summary: 
The application of information hiding to image compression is investigated to improve compression efficiency for JPEG color images. In the proposed method, entropy-coded DCT coefficients of chrominance components are embedded into DCT coefficients of the luminance component. To recover an image in the face of the degradation caused by compression and embedding, an image restoration method is also applied. Experiments show that the use of both information hiding and image restoration is most effective to improve compression efficiency.